I have a RG, but on it the Klock Werks 12" is one great shield, triple digits and no head bouncing around with it. I have tried 4 diff. ones and love it for its looks as well as function

 

Don't care for the melted in the sun look.
Had a KW 6.5 and thought basically it was a POS, FWIW.

 

I just took my 7" windsplitter off yesterday and put my 4" stock back on to see the differenct. I'm 6' with a 30" inseam and with the 7" the wind hit my helmet just above the bill and bounced me around alot. With the stock 4" the wind hits me in the face and my head doesn't bounce around to much. 4" ok for back roads but I will be looking for a different shield for long runs.

Good luck on finding the one that's best for you.

 

I have the 12" on my RGC, like it fine

 

I have a 7"windsplitter and a 7"stock shaped.I'm 5'6" and the stock shaped 7" works a lot better for me.I've had the Windsplitter on a few times over the last year and I keep going back to the other one.But i'm sure that it is better than the stock SG windshield.